10242121 has 8 divisors (see below), whose sum is σ = 11129600. Its totient is φ = 9389520.

The previous prime is 10242101. The next prime is 10242131. The reversal of 10242121 is 12124201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10242121 - 2²³ = 1853513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10242101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8106 + ... + 9283.

It is an arithmetic number, because the mean of its divisors is an integer number (1391200).

Almost surely, 2^10242121 is an apocalyptic number.

It is an amenable number.

10242121 is a deficient number, since it is larger than the sum of its proper divisors (887479).

10242121 is a wasteful number, since it uses less digits than its factorization.

10242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17439.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 10242121 is about 3200.3313890908. The cubic root of 10242121 is about 217.1684012086.

Adding to 10242121 its reverse (12124201), we get a palindrome (22366322).

The spelling of 10242121 in words is "ten million, two hundred forty-two thousand, one hundred twenty-one".